20115543

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 31997952

約数和(自身を除く): 11882409

約数列:

[1, 3, 7, 21, 41, 61, 123, 183, 287, 383, 427, 861, 1149, 1281, 2501, 2681, 7503, 8043, 15703, 17507, 23363, 47109, 52521, 70089, 109921, 163541, 329763, 490623, 957883, 2873649, 6705181, 20115543]

約数ペア:

[(1, 20115543), (3, 6705181), (7, 2873649), (21, 957883), (41, 490623), (61, 329763), (123, 163541), (183, 109921), (287, 70089), (383, 52521), (427, 47109), (861, 23363), (1149, 17507), (1281, 15703), (2501, 8043), (2681, 7503)]